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Finding the Fourth Proportional to 117,561.92, 176,188.77 and 54,373.95

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Solution

The fourth proportional to 117,561.92, 176,188.77 and 54,373.95 is: 81,489.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,561.92 : 176,188.77 = 54,373.95 : x
  2. Step 2: Convert to fraction form
    117,561.92/176,188.77 = 54,373.95/x
  3. Step 3: Cross multiply
    117,561.92x = 176,188.77 × 54,373.95
  4. Step 4: Simplify right side
    117,561.92x = 9,580,079,370.54
  5. Step 5: Solve for x
    x = 9,580,079,370.54/117,561.92
  6. Step 6: Final answer
    x = 81,489.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.